KnownMountState enum
Valeurs connues de MountState que le service accepte.
Champs
| Mounted | Montée |
| MountFailed | MountFailed |
| MountRequested | MountRequested |
| Unmounted | Démonté |
| UnmountFailed | UnmountFailed |
| UnmountRequested | UnmountRequested |